2019 MERCEDES-BENZ C CLASS cruise control

1Steering wheel paddle shifters→15 6
2Combination switch→124
3DIRECT SELECT lever→154
4Multimedia system display→254
5Glovebox→105
6Start/stop button→14 5
7Climate control systems→13 9
8Control elementsforthe multimedia system→254
9Hazardwarning lights→12 5
APASSENGER AIRBAGindicator lamps→44
BStowage compartment→105
CControl panelforthe multimedia system→255
DControl knobforvolume and switchesthesound on/off
→254
ESwitchesthe multimedia system on/off→254
FRear window roller sunblind→79
GECOstart/stop function→15 2
HActiveParking Assist→211
ISetsthevehicle level→19 8
JDYNAMIC SELECT switch→15 3
KControl panelforthe multimedia system(steering wheel)
→227
LAdjuststhesteering wheel→101
MControl panelforthe on-board computer→227
Operates cruise control→182
OperatesActive Distance AssistDISTRONIC→185
NDiagnostics connection→25
OOpensthe hood→352
PElectric parking brake→16 8
QLight switch→12 2
RControl panelfor:
ActiveSteering Assist→191
Active LaneKeeping Assist→224
Ataglance – Cockpit7

Function oftheradar sensors
Some driving and driving safety systems useradar sensorstomonitorthe area in front of,behind or nexttothevehicle (depending onthevehicle's equipment).
Depending onthevehicle's equipment,theradarsensors are integrated behindthe bumpersand/or behindthe Mercedesstar.Keeptheseparts free of dirt, ice and slush(page 364). The sensors must not be cov‐ered,forexamplebycycleracks,overhangingloads,stickers,foil orfoilstoprotect againststonechipping. Intheevent of damagetothebumpers orradiator grill, orfollowing a collisionimpactingthe bumpers orradiator grill, havethefunction oftheradar sensorschecked at aquali‐fied specialistworkshop. The driver assistancesystem may no longerworkproperly.
Overview of driving systems and drivingsafety systems
Inthis section,you willfind information aboutthefollowing driving systems and driving safetysystems:
R360° Camera (page 206)
RABS (Anti-lockBrakingSystem)(page171)
RActive Distance AssistDISTRONIC(page183)
RAIRMATIC (page197)
RActive Brake Assist (page175)
RActive LaneKeeping Assist (page 222)
RATTENTION ASSIST (page215)
RBAS (BrakeAssistSystem) (page172)
RHillStart Assist (page195)
RDYNAMICBODYCONTROL (page196)
REBD (ElectronicBrakeforceDistribution)(page175)
RESP®(ElectronicStabilityProgram)(page172)
RActive Speed Limit Assist (page187)
RHOLD function (page195)
RSTEER CONTROL (page175)
RActiveSteering Assist (page189)
RActiveParking Assist (page 209)
RParking AssistPARKTRONIC(page 200)
RRear view camera (page 204)
RCruise control (page181)
RFunction of Blind Spot AssistandActive BlindSpot Assistwithexitwarning(page219)
RTraffic Sign Assist (page217)
Function of ABS (Anti-lock Braking System)
ABSregulatesthe brake pressure in critical driv‐ing situations:
RDuring braking, e.g. at full brake applicationor insufficient tire traction,the wheels areprevented from locking.
RVehiclesteerability while braking is ensured.
Driving and parking171

1Cruise control is selected
2Speed is saved, cruise control is deactivated
3Speed is saved, cruise control is activated
The segments betweenthestored speed andthe end ofthe segment display light up inthe speedometer.
System limitationsCruise control may be unabletomaintainthestored speed on uphill gradients. Thestoredspeed isresumed whenthe gradientevens out.
Change into a lowergear in good time on longandsteep downhill gradients.Takeparticularnoteofthis when driving a ladenvehicle. By
doing so,you will make use ofthe engine's brak‐ing effect. Thisrelievesthe load onthe brakesystem and preventsthe brakes fromoverheat‐ing andwearingtooquickly.
Do not use cruise control inthefollowing situa‐tions:
RIn traffic situations whichrequire frequentchanges of speed, e.g. in heavy traffic, onwindingroads.
ROn slipperyroads.Accelerating can causethe drive wheelstolose traction andthevehicle couldthen skid.
RIfyou are driving when visibility is poor.
Operating cruise control
\nWARNINGRisk of accident duetostoredspeed
Ifyou call upthestored speed andthis islowerthanyour current speed,thevehicledecelerates.
Takeinto accountthe traffic situationbefore calling upthestored speed.
Requirements:RESP®must be activated, but not intervening.
RThe driven speed is at least15mph(20 km/h).
RThe transmission is in position[.
Toactivate cruise control:pressrockerswitch1up.
18 2Driving and parking

Toactivate cruise control:pressrockerswitch2up (SET+) or down (SET-).The current speed isstored and maintainedbythevehicle whenyoutakeyourfootoffthe accelerator pedal.
or
Pressrocker switch3up (RES).The laststored speed is called up and main‐tainedbythevehicle.
Ifthe laststored speed has previously beendeleted,the currently driven speed isstored.
Whenyou switchoffthevehicle,the lastspeedstored is cleared.
Toincrease/reduce speed:pressrockerswitch2up/downtothe pressure point.Thestored speed is increased orreducedby1mph (1km/h).
or
Pressrocker switch2beyondthe pressurepoint.Thestored speed is increased orreducedby5mph (10 km/h).
or
Acceleratethevehicletothe desired speed.
Pressrocker switch2up.If cruise control is activated andTraffic SignAssisthas detected a speedrestriction sign witha maximum permissible speed andthis is dis‐played inthe instrument cluster:
Toadoptthe detected speed:pressrockerswitch3up.The maximum permissible speed shownbythe traffic sign isstored andthevehiclemaintainsthis speed.Todeactivate cruise control:pressrocker switch3down (CNCL).
Todeactivate cruise control:pressrockerswitch1down.
Ifyou brake, deactivate ESP®or if ESP®
intervenes, cruise control is deactivated.Whenyou switchoffthevehicle,the lastspeedstored is cleared.
Active Distance Assist DISTRONIC
Function ofActive Distance AssistDISTRONIC
Active Distance AssistDISTRONIC maintainstheset speed on free-flowingroads. Ifvehicles infront are detected,the set distance is main‐tained, if necessary,untilthevehicle comesto ahalt. Thevehicle accelerates or brakes depend‐ing onthe distancetothevehicle in front andthe set speed. The speed and distancetothevehicle in front are set and saved onthesteeringwheel onvehicles withoutthe Driving AssistancePackage, intherange between15mph(20 km/h) and120mph (200 km/h) and, on
Driving and parking18 3

SelectLimit Adoption.
Activatesor deactivateSthe function.The speed limits detectedbyTraffic SignAssistare automatically adoptedbyActiveDistance AssistDISTRONIC.
Displaying detected traffic signs in themedia display
SelectDisplay in COMAND.
Activatesor deactivateSthe function.
When DISTRONIC or cruise control are acti‐vated,the speed detected can be manuallyadopted asthe speed limit(page185).
Adjusting the type ofwarning
SelectVisual & Audible,VisualorNone.
Adjusting thewarningthresholdThisvalue determinesthe speed at which awarning is issued whenexceeded.
SelectWarning Threshold.
Setthe desired speed.
Blind Spot Assist andActive Blind SpotAssistwithexitwarning
Function of Blind Spot Assist andActiveBlind Spot AssistwithexitwarningBlind Spot Assist andActive Blind Spot Assistuse two lateral,rear-facingradar sensorstomonitorthe area upto130ft(40 m) behindyourvehicle and10ft(3 m) directly nexttoyourvehi‐cle.
If avehicle is detected at speeds above approx‐imately 8mph (12 km/h) andthisvehicle subse‐quentlyentersthe monitoringrange directly nextto yourvehicle,thewarning lamp inthe outsidemirror lights upred.
If avehicle is detected closetothe side ofyourvehicle,theredwarning lamp inthe outside mir‐rorflashes. Ifyou switchonthe turn signal indi‐cator inthe corresponding direction, awarningtone sounds once. Ifthe turn signal indicatorremains switched on, allother detectedvehiclesare indicated onlybytheflashing oftheredwarning lamp.
Ifyouovertake avehiclequickly,nowarning isgiven.
\nWARNINGRisk of accident despiteBlindSpot Assist
Blind Spot Assistdoes notreacttovehiclesapproaching andovertakingyou at agreatlydifferent speed.
As aresult, Blind Spot Assist cannotwarndrivers inthis situation.
Always pay careful attentiontothe traf‐fic situation and maintain a safe dis‐tance atthe side ofthevehicle.
Blind Spot Assist andActive Blind Spot Assistare onlyaids. They mayfailtodetect somevehi‐cles and are no substitutefor attentive driving.Always ensurethatthere is sufficient distancetothe sideforotherroad users and obstacles.
ExitwarningTheexitwarning is an additional function ofBlind Spot Assist and canwarnvehicle occu‐pants about approachingvehicles when leavingthevehicle whenstationary.
Driving and parking219

The segments on speedometer1indicatethesystemstatusforthefollowing:
RCruise control (page181)
RActive Distance AssistDISTRONIC(page183)
NOTEEngine damageduetoexcessivelyhigh engine speeds
The engine will be damaged ifyou drive withthe engine intheoverrevvingrange.
Do not drive with the engine intheover‐revvingrange.
The fuel supply is interruptedtoprotecttheengine whenthered mark ontachometer3(overrevvingrange) isreached.
During normal operating conditions, coolanttemperature display4mayrisetotheredmark.
\nWARNINGDanger of burns when open‐ingthe hood
Ifyou openthe hood whenthe engine hasoverheated or during afireinthe enginecompartment,you could come into contactwith hotgases orother escaping operatingfluids.
Before openingthe hood, allowtheenginetocool down.
Intheevent of afireinthe engine com‐partment,keepthe hood closed andcallthefireservice.
Overview ofthe buttons onthesteeringwheel
1¤Back/Home button (press and hold),on-board computer
2Touch Control, on-board computer
3Control panelfor cruise control orActiveDistance AssistDISTRONIC
4Control panelfor multimedia system:
£Voice Control System
ßDisplaysfavorites
VOL: control knob, adjuststhevolume orswitchesthe sound offc(press)
aMakes/accepts a call
Instrument Display and on-board computer227

Swipe upwards or downwards onthe left-handTouch Control and selecta(Accept)orv(Reject).
Pressthe left-handTouch Control.
You may accept/rejectthe call using buttonaorvonthesteering wheel.
Adjusting the Head-up Displaysettings onthe on-boardcomputer
On-board computer:
HUD
Thefollowing Head-up Display settings can beadjusted:
RPosition
RBrightness
RDisplay Content
Toselect a setting:swipe upwards or down‐wards onthe left-handTouch Control.
Pressthe left-handTouch Control.
Toadjust avalue:swipe upwards or down‐wards onthe left-handTouch Control.
Pressthe left-handTouch Control.
1Setting currently selected
2Digital speedometer
3Traffic Sign Assist
4Navigation displays
Head-up Display
Function ofthe Head-up Display
Mercedes-AMGvehicles:be suretoobservethe information inthe Supplement. Otherwise,you may notrecognize dangers.
The Head-up Display projects intothe driver'sfield of vision:
RInformation fromthe navigation system
RInformation fromthe driver assistance sys‐tems
RSomewarning messages
Display elements
1Navigation messages
2Current speed
3Detected instructions and traffic signs
4Set speed inthe driver assistance system(e.g. cruise control)
Instrument Display and on-board computer237

Active Service System PLUSsee ASSYSTPLUS
Active Speed Limit Assist.......................187Display.................................................187Function ..............................................187
ActiveSteering Assist.............................189Activating/deactivating .......................191Active EmergencyStop Assist .............193Active Lane Change Assist...................191Displays inthe Instrument Display ......19 3Function ..............................................189System limitations ...............................189
Adaptive cruise controlseeActive Distance AssistDISTRONIC
Adaptive Highbeam AssistFunction ..............................................12 5Switching on/off .................................12 6
AdditionalvaluerangeSetting display content ........................ 229
Additives.................................................. 427Engine oil ............................................. 427Fuel ..................................................... 427
Additives (engine oil)seeAdditives
Additives (fuel)seeFuel
Address booksee Contacts
Adjusting the balance/fader
Burmester®surround sound system ... 350
Adjusting the headlamprange...............12 3
Adjusting the soundfocus
Burmester®surround sound system ... 350
Adjusting treble, mid-range and basssettings
Burmester®surround sound system ... 350
ADS PLUS damping systemsee AIRMATIC
After-sales service centersee ASSYST PLUS
Air bagReduced protection ...............................42
Air conditioning systemsee Climate control
Air distributionSetting .................................................138
Air freshener systemseePerfume atomizer
Air inletsee Air-water duct
Air pressureseeTirepressure
Air suspensionsee AIRMATIC
Airvents...................................................14 3Adjusting (front) ..................................14 3Adjusting (rear) ....................................14 3
Airventssee Airvents
Air-recirculation mode.............................141
Air-water duct.......................................... 358Keeping free ........................................358
Airbag.........................................................40Activation .............................................. 34Front airbag (driver, front passenger) ....40Installation locations .............................40Knee airbag ........................................... 40
494Index